From 622d3b4e39381262da7b18ca1ed1311df227de86 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 18 Dec 2020 19:47:17 +0100
Subject: [PATCH] mac80211: fix fast-rx encryption check
Git-commit: 622d3b4e39381262da7b18ca1ed1311df227de86
References: git-fixes
Patch-mainline: v5.11-rc5
When using WEP, the default unicast key needs to be selected, instead of
the STA PTK.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20201218184718.93650-5-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
net/mac80211/rx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 13b9bcc4865d..972895e9f22d 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4176,6 +4176,8 @@ void ieee80211_check_fast_rx(struct sta_info *sta)
rcu_read_lock();
key = rcu_dereference(sta->ptk[sta->ptk_idx]);
+ if (!key)
+ key = rcu_dereference(sdata->default_unicast_key);
if (key) {
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_TKIP:
--
2.40.1